Box-strap



P. J-. FORBES.-

BOX STRAP. APPLICATION FILED 0CT.28, I9I8.

Patented Oct. 28, 1919.

WITNESSES ATTORNEYS PHILIP JONES FORBES, O1? BROOKLYN, NEW YORK.

BOX-STRAP.

Specification of Letters Patent.

Patented Oct. 28, 1919.

Application filed October 28, 1918. Serial No. 260,032.

To all whom it may concern:

Be it known that I, PHILIP J Forums, a citizen of the United States, anda resident of the city of New York, borough of Brooklyn, in the countyof Kings and State of New York, have invented a new and ImprovedBox-Strap, of which the following is a full, clear, andexactdescription.

The inventionrelates to metal straps fastened around packing boxesadjacent the ends thereof to securely bind the box memhers in place.

The object of the inventionis to provide a new and improved box strapprovided with nail holes to permit of quickly driving the nails throughthe holes into the material of the box to fasten the strap in place.Another object is to provide means for guiding the nail to the hole thusfacilitating the operation of nailing the strap to the box. Anotherobject is to provide the strap with fractured bosses for the passage ofthe nails and adapted to embed themselves in the wood or' other materialof which the box is made thus aiding the nails in holding the strap inplace on the box. Another object is to eliminate rough or rugged edgeson the walls of the fractured bosses to permit the operator toconveniently handle the strap during the handlingoperation and withoutdanger of lace-rating or tearing the skin on the fingers. Another objectis to permit of cheaply providing the box strap with the improvedfractured bosses.

With these and other objects in view the invention consists of certainnovel features of construction as hereinafter shown and described andthen specifically pointed out in the claims.

A practical embodiment of the invention is represented in theaccompanying drawings forming a part of this specification, in whichsimilar characters of reference indicate corresponding parts in all theviews.

Fig. 5 is a similar view of the box strap in position between the diesfor smoothing down the ragged edges of the walls of the bosses; and

Fig. 6 is a sectional side elevation of the box strap as applied to abox.

The metal strap 10 is provided with spaced struck-up fractured bosses 11forming nail holes for nails 12 for fastening the strap to the box 13 bydriving such nails through the bosses 11 into the box material, asplainly indicated in Fig. 6. It will be noticed that the bosses 11 embedthemselves in the boards or other material of which the box 13 is madeso that the bosses assist the nails in holding'the straplO in positionon the box. The struck-up bosses 11 are conical and form guiding meansfor the nails 12 to permit the operator to quickly engage the nails withthe bosses on driving the same through the bosses into the box material.

In order to form the bosses 11 on the box strap 10 the latter is passedbetween two rollers 20, 21, of which the roller 20 is provided on itsperipheral face with a conical die 22 for forming the boss 11 andfracturing the same at its apex, the boss and die being adapted to passinto a recess 23 formed in the peripheral face of the other roller 21.It will be noticed that the boss 11 formed by the die 22 has a ruggededge 25, as plainly indicated in Fig. 2, but such rugged edge isundesirable as it is liable to injure the person who handles the boxstrap and it also prevents proper rolling up of the box strap into aroll, in which form it is usually shipped. In order to obliterate thisrugged edge 25 the strap is passed between two rollers 30, 31 of whichthe roller 30 is provided with a smooth peripheral face and the otherroller 31 is provided at its peripheral face with a recess forming ananvil 32 which is narrower than the height of the boss and consequentlythe pressure exerted by the anvil compacts the material at the apex endof the boss 11 thus obliterating the sharp rugged edge 25 and leavingthe boss perfectly smooth, as will be readily understood by reference toFigs. 3 and 5.

In practice the two sets of rollers 20, 21 and 30. 31 are mounted on acommon frame (not shown) and are driven in unison by suitable mechanism,but as such driving mechanism is common in rotary dies it is not deemednecessary to further describe or illustrate the same.

From theforegoing it will be'seen'that by the arrangement described theoperator after placing the strap against the face: of the box 13 canreadily engage the point of a nail 12 with the conical recess formed inthe face of the strap by the corresponding boss 11 and drive such nailthrough the fracture in the boss to engage the nail with the material ofthe box with a view to securely fasten the strap in place.

It will be noticed that the conical recess formed in theface of thestrap by a boss 11 provides a convenient guiding means for engaging thepoint of the nail with the boss thus facilitating" the operation ofnailing the strap to the box.

It will also be noticed that the bosses 11 readily embed themselves inthe wood or othermaterial of which the box is made thus aiding the nails12 in holding the strap in placeon the box.

It will further be noticed that by the elimination of the rough andrugged edges of the apex ends of the bosses the operator canconveniently handle the strap without danger of lacerating or tearingthe skin on the fingers,- and by the arrangement described the strap,after being provided with the bosses, can be readily rolled up forshipment with the layers" in the roll properly superimposed as thebosses are of uniform height and free of rugged sharp edges.

Having thus described my invention, I claim as new and desire to secureby Letters Patent 1. As a new article of manufacture, a strap for awooden boX, consisting of a flangeless metal band having frusto-conicalopen ended hollow bosses struck up therefrom and projecting from itsinner face, said bosses forming conical recesses with continuousunbroken walls, whereby the bosses will readily enter the material ofthe box and be embedded therein when the nails are driven therethroughinto the material of the box.

2. As a new article of manufacture, a box strap of the class describedconsisting of a flat and fiangeless metal band having at spaced points,frusto-conical open ended hollow bosses struck up therefrom underpressure, the rugged edges at the apices of the bosses being obliteratedto render said bosses smooth, said bosses forming conical recesses andadapted to enter into the mate rial of a box when nails are driventherethrough so that the heads of the nails will lie substantiallywithin the plane of the strap.

PHILIP JONES FORBES.

(loplei or this patent may be obtained m five cents each, by addressingthe Commissioner of Patents, Washington, 1). 0."

